<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>闭包实现次数统计</title>
</head>
<body>
    <script>
        function count(){
            let i = 0
            function fn(){
                i++
                console.log(i);
            }
            return fn
        }
        const f = count()
    </script>
</body>
</html>